Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b8f2659cd48f659…

MALICIOUS

PDF

45.4 KB Created: 2020-08-09 13:56:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 140949cee853c55ca9276f96617b0c10 SHA-1: cd241214ee4715be50d7ca486a801ca19a6ec6f6 SHA-256: 5b8f2659cd48f659efe4e6f05bb8c1be5800a6ad4e0a94105b4dce4c2028b93a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL is https://ttraff.ru/pify?keyword=accidentes+laborales+en+chile+2020+pdf, which is known to lead to malicious content. This suggests the document is part of a link farm or SEO poisoning campaign designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=accidentes+laborales+en+chile+2020+pdf In PDF document text
    • http://files.livelifewelltherapy.com/uploads/1/3/0/8/130874433/8199104.pdfIn PDF document text
    • http://files.johnmjoysolicitors.com/uploads/1/3/0/7/130776864/b6c88575862.pdfIn PDF document text
    • http://files.thepaganpicnic.com/uploads/1/3/1/3/131398117/756800.pdfIn PDF document text
    • http://files.lazarusvintagerevival.com/uploads/1/3/1/4/131454459/xuwizageto.pdfIn PDF document text
    • http://kugax.kahurangiwalks.co.nz/uploads/1/3/2/8/132814930/9032487.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3587/2667/files/artificial_intelligence_trends_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5108/2143/files/buganujegusupuzibubotiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8206/3777/files/3214355751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2118/8763/files/energias_alternativas_en_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5841/4236/files/honda_goldwing_gl1800_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5716/8027/files/15244418222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/woxotiwefuxefakagezelerub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1339/7913/files/polap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7522/3200/files/boyds_bears_value_guide_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogazuzotefoninu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2070/6204/files/41449737914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2190/9667/files/sajofarel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1618/2184/files/like_water_for_chocolate_book_download.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA5 5648 bytes
SHA-256: b1059b761722804534faf45550df96981767b358a89698ef74667811ce9adc5d
font_01_sfnt_off000082d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D5 11036 bytes
SHA-256: a9db9428f1539b1f9983e35706cfb0a727fffd62afc87ee3c51b94fff3c850fb

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